MESON Chess Problem Database

Problem Display
PID: 99920 (3K3Q/3p1p2/1pP2p1n/3kpP2/R2PN2q/B6p/3P3b/1BR5 w - - 0 1)

Vilkauskas, Antanas

Bata-80 JT, 1988

3K3Q/3p1p2/1pP2p1n/3kpP2/R2PN2q/B6p/3P3b/1BR5

#2

11 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Sxf6#
    • 1...Qf2
      • 2.Sxf6#
    • 1...Qg3
      • 2.Sxf6#
    • 1...Qxe4
      • 2.Ba2#
    • 1...Qf4
      • 2.Sxf6#
    • 1...Qg4
      • 2.Sxf6#
    • 1...Qh5
      • 2.Sxf6#
    • 1...b5
      • 2.Rc5#
    • 1...dxc6
      • 2.Sc3#
  • Tries
    • 1.Kxd7?
      • threat
        • 2.Sc3#
      • 1...Qxe4
        • 2.Ba2#
      • 1...Qg3
        • 2.Sxf6#
      • 1...exd4!
    • 1.Qxf6?
      • threat
        • 2.Sc3#
      • 1...Qxf6+
        • 2.Sxf6#
      • 1...Qxe4
        • 2.Ba2#
        • 2.Qd6#
      • 1...exd4
        • 2.Rxd4#
      • 1...Qg3
        • 2.Qd6#
      • 1...d6!
    • 1.Qf8?
      • threat
        • 2.Qd6#
      • 1...Sxf5
        • 2.Qxf7#
      • 1...d6
        • 2.Qxd6#
      • 1...exd4!
    • 1.d3?
      • threat
        • 2.Ba2#
      • 1...Qf2
        • 2.Sxf6#
      • 1...exd4!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qxd7#
      • 1...Sxf5
        • 2.Qxf7#
      • 1...exd4
        • 2.Ba2#
      • 1...dxc6
        • 2.Sc3#
        • 2.Qxc6#
        • 2.Qd7#
      • 1...d6
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 9
  • Sets
    • Q(c);N_GUARD::S(G),XP(g)
    • Q(c);SBLOCK,XS(G)::B(A)
    • P(f);N_GUARD::R1(B)
    • P(i);SBLOCK,XP(I)::S(G)
  • Tries
    • Try
      • K(J);P-FLIGHT,XP(i)
      • Threat
        • S(G)
      • Vars
        • Q(c);SBLOCK,XS(G)::B(A)
        • Q(c);N_GUARD::S(G),XP(g)
      • Refutation
        • P(e);XP(F)
    • Try
      • Q(K);P_SPINQ(K),XP(g)
      • Threat
        • S(G)
      • Vars
        • Q(c);CHECK,XQ(K)::S(G),XQ(c)
        • P(e);OGATE,XP(F)::R1(E),XP(e)
        • Q(c);N_PINQ(K)::QAR1(K)
      • Refutation
        • P(i);
    • Try
      • Q(K);
      • Threat
        • QAR1(K)
      • Vars
        • S(h);N_GUARD,XP(H)::QAB(K),XP(j)
        • P(i);::QAR1(K),XP(i)
      • Refutation
        • P(e);XP(F)
    • Try
      • P(C);
      • Threat
        • B(A)
      • Vars
        • Q(c);N_GUARD::S(G),XP(g)
      • Refutation
        • P(e);XP(F)
  • Actual
    • Q(K);
    • Threat
      • QAR2(K),XP(i)
    • Vars
      • S(h);N_GUARD,XP(H)::QAB(K),XP(j)
      • P(e);XP(F)::B(A)
      • P(i);::S(G)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).